We have been using 3M window films in Northern Nevada and Lake Tahoe since 1984. Nothern Nevada's only authorized 3M window film dealer and 3M Prestige dealer applicator. We have been using 3M window films for over 20 years. Thirty-eight 3M window film products have been awarded "The Seal of Recommendation" as effective UV protectants by the Skin Cancer Foundation. Life-Time warranty on most films backed by 3M, a Fortune 100 company that has been in business for over 100 years. Made in America by an established American company. Who do you want your warranty backed by?